title: Evaluation of routine postoperative chest X-rays in the management of the cardiac surgical patient.
abstract: OBJECTIVE
  To evaluate the role of routine chest X-rays in the management of patients post cardiac surgery.
  
  
  METHODS
  340 adult patients undergoing cardiac surgery were studied in three consecutive groups (A, B, C) of 100 patients each. Forty patients were excluded due to the intensive care stay greater than 36 h (n = 35), or early mortality within 36 h (n = 5). Routine chest X-rays were performed according to different protocols in Groups A and B. In group C there were no routine chest X-rays during the entire postoperative period [corrected]. In all three groups chest X-rays were performed where clinically indicated. Group A had three routine chest X-rays post-operation. Group B had one routine chest X-ray on day 4 post-operation. Group C had chest X-rays only when indicated. The X-rays were evaluated in terms of their assistance value and the resultant number of interventions.
  
  
  RESULTS
  The three groups were similar preoperatively for age, sex, preoperative left ventricular function, presence of chronic obstructive airway disease and type of operation performed. The total number of chest X-rays in groups A, B and C were 304, 133 and 36, respectively. The number of chest X-rays leading to interventions were five, four and four in groups A, B and C, respectively. Chest X-rays that helped in management were 36, 28, and 28, respectively, in the same groups. There was no mortality or morbidity attributable to non-performance of routine chest X-ray.
  
  
  CONCLUSIONS
  Routine chest X-rays post-cardiac surgery are of very little value and patients are adequately managed by performing chest X-rays only when clinically indicated. There was no increased mortality or morbidity attributed to lack of routine chest X-rays in any of these groups. We recommend performing chest X-rays only when clinically indicated in satisfactorily recovering adult cardiac surgical patients.
authors.affiliation: Cardiothoracic Surgery and Cardiothoracic Anaesthesia, South Cleveland Hospital, Middlesbrough, UK.
authors.forename: P S
authors.initials: PS
authors.lastname: Rao
authors.forename: Q
authors.initials: Q
authors.lastname: Abid
authors.forename: K J
authors.initials: KJ
authors.lastname: Khan
authors.forename: R J
authors.initials: RJ
authors.lastname: Meikle
authors.forename: K M
authors.initials: KM
authors.lastname: Natarajan
authors.forename: G N
authors.initials: GN
authors.lastname: Morritt
authors.forename: J
authors.initials: J
authors.lastname: Wallis
authors.forename: S W
authors.initials: SW
authors.lastname: Kendall
mesh_terms: D006348:Cardiac Surgical Procedures; D003955:Diagnostic Tests, Routine; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D013902:Radiography, Thoracic